The unique beachside ceremony on March 16 is to be broadcast live online across the globe.
The naming event is expected to take place during a Caribbean roundtrip voyage departing from homeport Bridgetown Barbados.
In October 2022, P&O UK said the launch of the 18-deck ship had been pushed back from December 9 to December 23 because of “reasons beyond our control”.
On the 2023 naming ceremony, P&O president Paul Ludlow said they always aimed to do things differently, to create stand-out and memorable moments for their current and future guests.
“Arvia, which will be delivered in December, will spend her first season sailing in the Caribbean so it is fitting that we mark her naming in one of our favourite ports of call with a week of celebratory performances and experiences on board.
“This naming event, which has never been done before, will showcase our extraordinary new ship Arvia, the beauty of Barbados and will include some very special surprises.
“The ship will be positioned off one of the island’s most stunning beaches so the audience at home will be able to see both the striking new interior design of the ship as well as the performances and events taking place on the shore. It will be an unmissable event.”